Basic consideration of MPEG-2 coded file entropy and lossless re-encoding

Kazuo Ohzeki, Yuǎn Yù Wei, Eizaburo Iwata, Ulrich Speidel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Re-encoding of once compressed flies is one of the difficult challenges in measuring the efficiency of coding methods. Variable length coding with a variable source delimiting scheme is a promising method for improving re-encoding efficiency. Analyses of coded flies with fixed length delimiting and with variable length delimiting are reviewed. Motion vector codes of MPEG-2 encoded files are modified as a variable-to-variable coding point of view. Length, bit-rates, and varieties of videos are examined. The largest file is 16 seconds of D1 full size at 720 ×480 among five video files. By entropy evaluation, an improvement of almost 20% in coding efficiency over the conventional MPEG-2 is obtained.

Original languageEnglish
Title of host publicationProceedings of the International Multiconference on Computer Science and Information Technology, IMCSIT 2010
Pages741-748
Number of pages8
Volume5
Publication statusPublished - 2010
Event2010 International Multiconference on Computer Science and Information Technology, IMCSIT 2010 - Wisla
Duration: 2010 Oct 182010 Oct 20

Other

Other2010 International Multiconference on Computer Science and Information Technology, IMCSIT 2010
CityWisla
Period10/10/1810/10/20

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Entropy

ASJC Scopus subject areas

  • Computer Science (miscellaneous)
  • Information Systems

Cite this

Ohzeki, K., Wei, Y. Y., Iwata, E., & Speidel, U. (2010). Basic consideration of MPEG-2 coded file entropy and lossless re-encoding. In Proceedings of the International Multiconference on Computer Science and Information Technology, IMCSIT 2010 (Vol. 5, pp. 741-748). [5679744]

Basic consideration of MPEG-2 coded file entropy and lossless re-encoding. / Ohzeki, Kazuo; Wei, Yuǎn Yù; Iwata, Eizaburo; Speidel, Ulrich.

Proceedings of the International Multiconference on Computer Science and Information Technology, IMCSIT 2010. Vol. 5 2010. p. 741-748 5679744.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ohzeki, K, Wei, YY, Iwata, E & Speidel, U 2010, Basic consideration of MPEG-2 coded file entropy and lossless re-encoding. in Proceedings of the International Multiconference on Computer Science and Information Technology, IMCSIT 2010. vol. 5, 5679744, pp. 741-748, 2010 International Multiconference on Computer Science and Information Technology, IMCSIT 2010, Wisla, 10/10/18.
Ohzeki K, Wei YY, Iwata E, Speidel U. Basic consideration of MPEG-2 coded file entropy and lossless re-encoding. In Proceedings of the International Multiconference on Computer Science and Information Technology, IMCSIT 2010. Vol. 5. 2010. p. 741-748. 5679744
Ohzeki, Kazuo ; Wei, Yuǎn Yù ; Iwata, Eizaburo ; Speidel, Ulrich. / Basic consideration of MPEG-2 coded file entropy and lossless re-encoding. Proceedings of the International Multiconference on Computer Science and Information Technology, IMCSIT 2010. Vol. 5 2010. pp. 741-748
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